638518081 (number)

638518081 is an odd 9-digits prime number following 638518080 and preceding 638518082. In scientific notation, it is written as 6.38518081 × 10^8. The sum of its digits is 40. It has a total of 1 prime factors and 2 positive divisors. There are 638518080 positive integers (up to 638518081) that are relatively prime to 638518081.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million five hundred eighteen thousand eighty-one

Notation

Scientific notation 6.38518081 × 10^8
Engineering notation 6.38518081 × 10^6

Prime Factorization of 638518081

Prime Factorization 638518081

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 638518081
Product of the distinct prime numbers

The prime factorization of 638518081 is 638518081. Since it has a total of 1 prime factors.

Most popular turbo-numbers

6, 1, 87, 6, 344, 199, 7737, 7894, 50007, 75983, 102395, 162236, 9069589, 940724, 56852563, 86506756, 221990805, 984736438, 5403937803, 4321634571

Basic calculations (n = 638518081)

Multiplication

n×y
n×2 1277036162
n×3 1915554243
n×4 2554072324
n×5 3192590405

Division

n÷y
n÷2 319259040.5
n÷3 212839360.33333
n÷3 159629520.25
n÷5 127703616.2

Exponentiation

ny
n2 407705339763922561
n3 2.6032723115951E+26
n4 1.6622364407202E+35
n5 1.0613680222969E+44

Nth Root

y√n
2√n 25268.915311109
3√n 861.10821661585
4√n 158.96199329119
5√n 57.681246894555

Divisors of 638518081

1, 638518081

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 638518082
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 319259041
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 25268.915330896
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999968677
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638518081 can be divided by 2 positive divisors. The sum of these divisors (counting 638518081) is 638518082, the average is 319259041.

Base conversion 638518081

Base System Value
2 Binary 100110000011110000001101000001
3 Ternary 1122111111002010211
4 Quaternary 212003300031001
5 Quinary 2301430034311
6 Senary 143205354121
8 Octal 4603601501
10 Decimal 638518081
12 Duodecimal 159a08941
16 Hexadecimal 260f0341
20 Vigesimal 9jaef41
36 Base36 ak5npd

Cryptographic Hash Functions

md5 6ace9f9c50a049412d285db6c7925fbe
sha1 23427ccdafc7aaa1218b1480192a8fef8a0dde00
sha256 045647b342d6dd00e0acc9543d8ef809d1919b6dddfca7d73467fe170170c41d
sha512 989b7f4aa98b95b699304dd1373adfade3651b5c7dd798a8d57a9f0c060999b2132e26862b49bdf918b7c8a6179f52fab0c69760dc7d433b40b3d69a17f854c0
ripemd-160 64c106cfb808b86a9fa6040cee636da95d66ee3c

638518081 as geometric shapes

Circle

Radius = n
Diameter 1277036162
Circumference 4011927424.9077
Area 1.2808441002317E+18

Sphere

Radius = n
Volume 1.0904561559201E+27
Surface area 5.1233764009267E+18
Circumference 4011927424.9077

Square

Length = n
Perimeter 2554072324
Area 407705339763922561
Diagonal 903000929.97064

Cube

Length = n
Surface area 2446232038583535366
Volume 2.6032723115951E+26
Space diagonal 1105945757.8434

Equilateral Triangle

Length = n
Perimeter 1915554243
Area 1.7654159074706E+17
Altitude 552972878.92169

Triangular Pyramid

Length = n
Surface area 1.7654159074706E+17
Volume 3.0679858413402E+25
Height 301000309.99021